http://is.gd/dgBK
On Dec 24, 5:38 pm, boson <dan.kam...@gmail.com> wrote:
> Is there a good way (any way) to hook a db.Model subclass so that it
> does some magic right before being written to the Datastore, and some
> reverse magic right when it's read back?
>
> E.g. Say you want to have a big JSON object stored in a TextProperty.
> Obviously you could JSON and de-JSON it yourself every time you load
> or save it. But ideally you could hook this code into the class
> itself, so as soon as it's read from the store the JSON string is gone
> and a Python object is in its place. Similarly, you could manipulate
> the Python object and write it back to the store, where it would be
> quickly re-JSONed prior to hitting BigTable.
>
> Or maybe there's another better way to work with and serialize
> arbitrary Python data (lists, dicts, etc.) without writing the code
> for it in multiple places... Pickle?
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